upload: Fix patchset description destination

Bug: 308467447
Change-Id: I8ad598d39f5fdb24d549d3277ad5fedac203581b
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/412477
Reviewed-by: George Engelbrecht <engeg@google.com>
Tested-by: Josip Sokcevic <sokcevic@google.com>
Commit-Queue: Josip Sokcevic <sokcevic@google.com>
diff --git a/subcmds/upload.py b/subcmds/upload.py
index 001453f..081f1af 100644
--- a/subcmds/upload.py
+++ b/subcmds/upload.py
@@ -247,6 +247,7 @@
         p.add_option(
             "--pd",
             "--patchset-description",
+            dest="patchset_description",
             help="description for patchset",
         )
         p.add_option(